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Public domainNewton's own text, as far as the record shows: its edition and notes name no translator or editor.Basis: author death year 1727, under a life-plus-70-years rule, as of 2026; other rules, such as the United States publication-date rules, are not assessed.
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plain text, HTML, EPUB, OCR text
Fingerprint
1e25ec2c54fc6e9fa05d7f0a663e05cf2ee671231c65731f4845df2539dfb217sha256 of the file (64 characters). Any change to the file changes this code.
Cite as
Isaac Newton, Opticks (1704). Long Keeping, call number NEW B1704.02. https://longkeeping.com/isaac-newton/opticks/
Unchanged since collectedAt the last check, on 2 October 2026, all 903 originals, this work's 7 files among them, matched the fingerprints recorded when they were collected. Each copy is re-checked by hand once a year; there is no automatic alert yet.
Notes on this copy
#1The file carries images, and no check is recorded yet that none of them is a picture of the person (the collection keeps no likenesses).
#2Machine-read text (OCR), not proofread, with no page images in the file to check it against.
#4A robots or site-policy slip: fetched from Project Gutenberg's main site, whose policy asks for human visitors only, or by a Wikisource request its robots rules disallow.
#9Saved from Wikisource without a pinned revision number; the revision is recorded inside the file itself.
#10An Internet Archive derivative made from the scan, not the master scan.
This work's saved web pages are listed under Files. Their reading copies leave the pictures out: a picture appears in a reading copy only once the library has recorded its licence, the licence is on the library's pass list, and it has been checked for a likeness. See its pictures at the source ↗ (another site).
Files
First pass, not a clearance.
Links inside these saved pages were written for the site they were saved from; some lead nowhere here.
Public domainNewton's own text, as far as the record shows: its edition and notes name no translator or editor.Basis: author death year 1727, under a life-plus-70-years rule, as of 2026; other rules, such as the United States publication-date rules, are not assessed.Distribution terms: Project Gutenberg License (with the file)
Public domainNewton's own text, as far as the record shows: its edition and notes name no translator or editor.Basis: author death year 1727, under a life-plus-70-years rule, as of 2026; other rules, such as the United States publication-date rules, are not assessed.Licence: CC BY-SA 4.0 ↗ (another site). Attribution: Wikisource contributors ↗ (another site).This is Wikisource's licence for its own contributions to this saved page, such as layout and notes. The work's text is labelled public domain, as this file's label shows.
Public domainNewton's own text, as far as the record shows: its edition and notes name no translator or editor.Basis: author death year 1727, under a life-plus-70-years rule, as of 2026; other rules, such as the United States publication-date rules, are not assessed.Licence: CC BY-SA 4.0 ↗ (another site). Attribution: Wikisource contributors ↗ (another site).This is Wikisource's licence for its own contributions to this saved page, such as layout and notes. The work's text is labelled public domain, as this file's label shows.
Public domainNewton's own text, as far as the record shows: its edition and notes name no translator or editor.Basis: author death year 1727, under a life-plus-70-years rule, as of 2026; other rules, such as the United States publication-date rules, are not assessed.Held in the archive: its images await the archive's likeness review. Its source ↗ (another site)
Public domainNewton's own text, as far as the record shows: its edition and notes name no translator or editor.Basis: author death year 1727, under a life-plus-70-years rule, as of 2026; other rules, such as the United States publication-date rules, are not assessed.From the Internet Archive ↗ (another site)
Public domainNewton's own text, as far as the record shows: its edition and notes name no translator or editor.Basis: author death year 1727, under a life-plus-70-years rule, as of 2026; other rules, such as the United States publication-date rules, are not assessed.From the Internet Archive ↗ (another site)
Public domainNewton's own text, as far as the record shows: its edition and notes name no translator or editor.Basis: author death year 1727, under a life-plus-70-years rule, as of 2026; other rules, such as the United States publication-date rules, are not assessed.From the Internet Archive ↗ (another site)